Advanced Functional Materials (Adv Funct Mater )

Publisher: John Wiley and Sons

Description

At last you will have a chance to get the full story. Starting in 2001 the publishers of Advanced Materials will be bringing you Advanced Functional Materials as the full-paper sister journal to Advanced Materials . The journal will be edited by the Advanced Materials team of Peter Gregory Esther Levy and Alison Green and will cover all aspects of high-tech materials chemistry and physics. The content of Advanced Functional Materials will comprise the stimulating combination of Full Papers Feature Articles and Highlights. Full Papers will present details of outstanding materials science research Feature Articles will give you a comprehensive view of recent research developments while Highlight articles will provide you with a balanced view of new and topical subjects. Starting with 6 issues in 2001 Advanced Functional Materials will enjoy the same circulation as Advanced Materials. With the support of the internationally renowned Advisory Board and the dedicated editors of the world's no. 1 materials science journal Advanced Functional Materials replaces Advanced Materials for Optics and Electronics published until the end of 2000 by John Wiley & Sons Ltd. Chichester. Advanced Functional Materials is certain to become the premier international journal for professionals everywhere who want the full story on the best materials science and who want to stay informed on what's hot. Readers Materials scientists chemists physicists ceramicists engineers metallurgists

  • Impact factor
    10.44
  • 5-year impact
    10.34
  • Cited half-life
    4.20
  • Immediacy index
    1.82
  • Eigenfactor
    0.12
  • Article influence
    3.01
  • Website
    Advanced Functional Materials website
  • Other titles
    Advanced functional materials (Online), Advanced functional materials, Advanced materials (Deerfield Beach, Fla.: Online)
  • ISSN
    1616-3028
  • OCLC
    46613529
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

John Wiley and Sons

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • See Wiley-Blackwell entry for articles after February 2007
    • On personal web site or secure external website at authors institution
    • Deposit in institutional repositories is not allowed
    • JASIST authors may deposit in an institutional repository
    • Non-commercial
    • Pre-print must be accompanied with set phrase (see individual journal copyright transfer agreements)
    • Published source must be acknowledged with set phrase (see individual journal copyright transfer agreements)
    • Publisher's version/PDF cannot be used
    • Articles in some journals can be made Open Access on payment of additional charge
    • 'John Wiley and Sons' is an imprint of 'Wiley'
  • Classification
    ​ green

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Crystalline organic molecules often exhibit the ability to assemble into multiple crystal structures depending on the processing conditions. Exploiting this polymorphism to optimize molecular orbital overlap between adjacent molecules in the unit lattice is an effective method for improving charge transport within the material. In this study, grazing incident X-ray diffraction was employed to demonstrate the formation of tighter π-π stacking poly(3-hexylthiophene-2,5-diyl) polymorphs in films spin coated from ferrocene-containing solutions. As a result, the addition of ferrocene to casting solutions yields thin-film transistors which exhibit approximately three times higher source-drain currents and charge mobilities than neat polymer devices. Nevertheless, XPS depth profiling and NMR analyses of the active layer reveal that all ferrocene is removed during the spin coating process, which may be an essential factor to achieve high mobilities. Such insights gleaned from ferrocene/poly(3-hexylthiophene-2,5-diyl) mixtures can serve as a template for selection and optimization of other small molecule/polymer systems with greater baseline charge mobilities.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Thermal stability has been the important issue in organic solar cell, especially for the large scale fabrication and application in the future. In this work, a new strategy involving the introduction of porphyrin compound (BL) is proposed to prevent the [6,6]-phenyl C61 butyric acid methyl ester (PC61BM) aggregation. The supramolecular interactions between PC61BM and BL are first demonstrated in PC61BM:BL binary blend, and then the effect of BL on P3HT:PC61BM blend is qualitatively and quantitatively studied by differential scanning calorimetry, UV–vis absorption spectroscopy, atomic force microscopy, optical microscopy, and fluorescence techniques. It is found that the BL addition not only stabilizes the morphology of P3HT:PC61BM blend films, but also shows a good ability to maintain the electron mobility by depressing the PC61BM crystallization. And the thermal stability of the devices based on P3HT:PC61BM:BL ternary blend films is therefore greatly improved. For example, 8 wt% BL doping drops the power conversion efficiency by 10.5% relative to its peak value after 48 h of annealing at 130 °C, while 71.5% of decrease is obtained for the device without BL after only 3 h of annealing. This strategy is preliminarily proved to be universal and will show great potentials in future commercialization of polymer solar cells.
    Advanced Functional Materials 12/2014;
  • Advanced Functional Materials 12/2014; 24(46).
  • Ming‐Fai Lo, Zhi‐Qiang Guan, Tsz‐Wai Ng, Chiu‐Yee Chan, Chun‐Sing Lee
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    ABSTRACT: It has been generally believed and assumed that organometal halide perovskites would form type II P–N junctions with fullerene derivatives (C60 or PCBM), and the P–N junctions would provide driving force for exciton dissociation in perovskite-based solar cell. To the best of our knowledge, there is so far no experiment proof on this assumption. On the other hand, whether photogenerated excitons can intrinsically dissociate into free carrier in the perovskite without any assistance from a P–N junction is still controversial. To address these, the interfacial electronic structures of a vacuum-deposited perovskite/C60 and a solution-processed perovskite/PCBM junctions is directly measured by ultraviolet photoelectron spectroscopy. Contrary to the common believes, both junctions are found to be type I N–N junctions with band gap of the perovskites embedded by that of the fullerenes. Meanwhile, device with such a charge inert junction can still effectively functions as a solar cell. These results give direct experimental evidence that excitons are dissociated to free carriers in the perovskite film even without any assistance from a P–N junction.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Theory and experiment are combined to investigate the nature of low-energy excitons within ordered domains of 6,13-bis(triisopropylsilylethynyl)-pentacene (TIPS-PEN) polycrystalline thin films. First-principles density functional theory and many-body perturbation theory calculations, along with polarization-dependent optical absorption spectro-microscopy on ordered domains, show multiple low-energy absorption peaks that are composed of excitonic states delocalized over several molecules. While the first absorption peak is composed of a single excitonic transition and retains the polarization-dependent behavior of the molecule, higher energy peaks are composed of multiple transitions with optical properties that can not be described by those of the molecule. The predicted structure-dependence of polarization-dependent absorption reveals the exact inter-grain orientation within the TIPS-PEN film. Additionally, the degree of exciton delocalization can be significantly tuned by modest changes in the solid-state structure and the spatial extent of the excitations along a given direction is correlated with the degree of electronic dispersion along the same direction. These findings pave the way for tailoring the singlet fission efficiency of organic crystals by solid-state structure.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Controllable synthesis of large domain, high-quality monolayer MoS2 is the basic premise both for exploring some fundamental physical issues, and for engineering its applications in nanoelectronics, optoelectronics, etc. Herein, by introducing H2 as carrier gas, the successful synthesis of large domain monolayer MoS2 triangular flakes on Au foils, with the edge length approaching to 80 mm is reported. The growth process is proposed to be mediated by two competitive effects with H2 acting as both a reduction promoter for efficient sulfurization of MoO3 and an etching reagent of resulting MoS2 flakes. By using low-energy electron microscopy/diffraction, the crystal orientations and domain boundaries of MoS2 flakes directly on Au foils for the first time are further identified. These on-site and transfer-free characterizations should shed light on the initial growth and the aggregation of MoS2 on arbitrary substrates, further guiding the growth toward large domain flakes or monolayer films.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Electronics that are capable of destroying themselves, on demand and in a harmless way, might provide the ultimate form of data security. This paper presents materials and device architectures for triggered destruction of conventional microelectronic systems by means of microfluidic chemical etching of the constituent materials, including silicon, silicon dioxide, and metals (e.g., aluminum). Demonstrations in an array of home-built metal-oxide-semiconductor field-effect transistors that exploit ultrathin sheets of monocrystalline silicon and in radio-frequency identification devices illustrate the utility of the approaches.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Hydrogen-bonded pigments are remarkably stable high-crystal lattice energy organic solids. Here a lesser-known family of compounds, the epindolidiones, which demonstrates electronic transport with extraordinary stability, even in highly demanding aqueous environments, is reported. Hole mobilities in the range 0.05–1 cm2 V–1 s–1 can be achieved, with lower electron mobilities of up to 0.1 cm2 V–1 s–1. To help understand charge transport in epindolidiones, X-ray diffraction is used to solve the crystal structure of 2,8-difluoroepindolidione and 2,8-dichloroepindolidione. Both derivatives crystallize with a linear-chain H-bonding lattice featuring two-dimensional π–π stacking. Powder diffraction indicates that the unsubstituted epindolidione has very similar crystallinity. All types of epindolidiones measured here display strong low-energy optical emission originating from excimeric states, which coexists with higher-energy fluorescence. This can be exploited in light-emitting diodes, which show the same hybrid singlet and low-energy excimer electroluminescence. Low-voltage FETs are fabricated with epindolidione, which operate reliably under repeated cyclic tests in different ionic solutions within the pH range 3–10 without degradation. Finally, in order to overcome the insolubility of epindolidiones in organic solvents, a chemical procedure is devised to allow solution-processing via the introduction of suitable thermolabile solubilizing groups. This work shows the versatile potential of epindolidione pigments for electronics applications.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: A novel hybrid electrocatalyst consisting of nitrogen-doped graphene/cobalt-embedded porous carbon polyhedron (N/Co-doped PCP//NRGO) is prepared through simple pyrolysis of graphene oxide-supported cobalt-based zeolitic imidazolate-frameworks. Remarkable features of the porous carbon structure, N/Co-doping effect, introduction of NRGO, and good contact between N/Co-doped PCP and NRGO result in a high catalytic efficiency. The hybrid shows excellent electrocatalytic activities and kinetics for oxygen reduction reaction in basic media, which compares favorably with those of the Pt/C catalyst, together with superior durability, a four-electron pathway, and excellent methanol tolerance. The hybrid also exhibits superior performance for hydrogen evolution reaction, offering a low onset overpotential of 58 mV and a stable current density of 10 mA cm−2 at 229 mV in acid media, as well as good catalytic performance for oxygen evolution reaction (a small overpotential of 1.66 V for 10 mA cm−2 current density). The dual-active-site mechanism originating from synergic effects between N/Co-doped PCP and NRGO is responsible for the excellent performance of the hybrid. This development offers an attractive catalyst material for large-scale fuel cells and water splitting technologies.
    Advanced Functional Materials 12/2014;
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    ABSTRACT: The sensing performance of chemical sensors can be achieved not only by modification or hybridization of sensing materials but also through new design in device geometry. The performance of a chemical sensing device can be enhenced from a simple three-dimensional (3D) chemiresistor-based gas sensor platform with an increased surface area by forming networked, self-assembled reduced graphene oxide (R-GO) nanosheets on 3D SU8 micro-pillar arrays. The 3D R-GO sensor is highly responsive to low concentration of ammonia (NH3) and nitrogen dioxide (NO2) diluted in dry air at room temperature. Compared to the two-dimensional planar R-GO sensor structure, as the result of the increase in sensing area and interaction cross-section of R-GO on the same device area, the 3D R-GO gas sensors show improved sensing performance with faster response (about 2%/s exposure), higher sensitivity, and even a possibly lower limit of detection towards NH3 at room temperature.
    Advanced Functional Materials 12/2014;
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    ABSTRACT: The FOLFIRINOX regimen, a combination of three chemotherapy agents (5-fluorouracil, irinotecan, oxaliplatin) and folinic acid (a vitamin B derivatives reducing the side effect of 5-fluorouracil), has proved to be effective in the treatment of pancreatic cancer, and is more efficacious than the long-term reference standard, gemcitabine. However, the FOLFIRINOX is associated with high-grade toxicity, which markedly limits its clinical application. Encapsulation of drugs in nanocarriers that selectively target cancer cells promises to be an effective method for co-delivery of drug combinations and to mitigate the side effects of conventional chemotherapy. Here we reported the development of multiple layer-by-layer lipid-polymer hybrid nanoparticles with targeting capability that show excellent biocompatibility and synergistically combine the favorable properties of liposomes and polymer nanoparticles. Relative to nanoparticles consisting of polymer alone, these novel nanocarriers have a long half-life in vivo and a higher stability in serum. The nanocarriers were loaded with the three active antitumor constituents of FOLFIRINOX regimen. Little drugs were released from the nanoparticles in phosphate buffered saline (PBS) solution, but the cargoes were quickly released after the nanoparticles were taken up by tumor cells. These innovative drug-loaded nanoparticles achieved higher antitumor efficacy and showed minimal side effects compared with the FOLFIRINOX regimen alone. Our study suggested that the multiple layer-by-layer hybrid nanoparticles have great potential for improving the chemotherapeutic efficacy for the patients with pancreatic cancer. This platform also provides new opportunities for tailored design of nanoparticles that may offer therapeutics benefits for a range of other tumors.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Carbon nanotubes (CNTs) are widely known to agglomerate into difficult to separate, 10–100 μm bundles, even after suspension in solution. Here, a dry and rapid (≈10 s) method to deagglomerate bulk, unbound multi-walled CNT bundles due to surface acoustic waves (SAW) in a piezoelectric substrate is reported for the first time. The process first forms 1-μm CNT bundles from extremely large (≈10 Mm/s2) mechanical accelerations due to the SAW; these bundles are consequently susceptible to SAW-induced evanescent, quasistatic electric fields that couple into the bundles and form a mat of long (1–10 μm) individual CNTs on the substrate surface. These CNTs may then be aligned along the direction of shear provided by sliding a glass cover slip 10 mm across the CNT mat. This alignment is notably independent of the SAW propagation direction. Further, the intrinsic structure of the nanotubes is unaffected as verified using Raman spectroscopy. Uniquely simple, the approach avoids the many shortcomings of other CNT deagglomeration techniques—particularly surface modification and suspension in solution—to rapidly separate and align large numbers of CNTs, thereby overcoming a key limitation in their use for a diverse range of applications.
    Advanced Functional Materials 12/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Thermotropic liquid-crystalline (LC) electrolytes for lithium-ion batteries are developed for the first time. A rod-like LC molecule having a cyclic carbonate moiety is used to form self-assembled two-dimensional ion-conductive pathways with lithium salts. Electrochemical and thermal stability, and efficient ionic conduction is achieved for the liquid crystal. The mixture of the carbonate derivative and lithium bis(trifluoromethylsulfonyl)imide is successfully applied as an electrolyte in lithium-ion batteries. Reversible charge–discharge for both positive and negative electrodes is observed for the lithium-ion batteries composed of the LC electrolyte.
    Advanced Functional Materials 12/2014;
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    ABSTRACT: The electrodynamic properties of La-doped SrTiO3 thin films with controlled elemental vacancies are investigated using optical spectroscopy and thermopower measurement. In particular, a correlation between the polaron formation and thermoelectric properties of the transition metal oxide (TMO) thin films is observed. With decreasing oxygen partial pressure during the film growth (P(O2)), a systematic lattice expansion is observed along with the increased elemental vacancy and carrier density, experimentally determined using optical spectroscopy. Moreover, an absorption in the mid-infrared photon energy range is found, which is attributed to the polaron formation in the doped SrTiO3 system. Thermopower of the La-doped SrTiO3 thin films can be largely modulated from –120 to –260 μV K−1, reflecting an enhanced polaronic mass of ≈3 < m polron/m < ≈4. The elemental vacancies generated in the TMO films grown at various P(O2) influences the global polaronic transport, which governs the charge transport behavior, including the thermoelectric properties.
    Advanced Functional Materials 12/2014;
  • Kelly M. C. Tsang, Nasim Annabi, Francesca Ercole, Kun Zhou, Daniel J. Karst, Fanyi Li, John M. Haynes, Richard A. Evans, Helmut Thissen, Ali Khademhosseini, John S. Forsythe
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    ABSTRACT: Hydrogels are often employed as temporary platforms for cell proliferation and tissue organization in vitro. Researchers have incorporated photodegradable (PD) moieties into synthetic polymeric hydrogels as a means of achieving spatiotemporal control over material properties. In this study protein-based PD hydrogels composed of methacrylated gelatin and a crosslinker containing o-nitrobenzyl ester groups are developed. The hydrogels are able to degrade rapidly and specifically in response to UV light and can be photopatterned to a variety of shapes and dimensions in a one-step process. Micropatterned PD hydrogels are shown to improve cell distribution, alignment, and beating regularity of cultured neonatal rat cardiomyocytes. Overall this work introduces a new class of PD hydrogel based on natural and biofunctional polymers as cell culture substrates for improving cellular organization and function.
    Advanced Functional Materials 12/2014;